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(No Model.)

QUAN KAI. SEAM PDR UNITING-PIEGES 0F LEATHER. N01 283,252.

Patented Aug. 14, `1883.

-Hununluul "A 339% /V'namw UNITED STATES PATENT OFFICE.

QUA-N KAI, or sAN EEANCIsCo, CALIECE'NIA.

SEAM FORIUNITING PIECESIOF LEATHER.

` SPECIFICATION forming part` of Letters Patent No. 283,252, datedAugust 14, 1883.

' Application filed December-29,1851. (No'modehl To all whom it mayconcern,.-

Beit known that I, QUAN KAI, of the city and county of San Francisco, inthe State of California, have invented an Improved Seam for UnitingPieces `of Leather 5 and I do hereby declare that the following is afull, clear,

and exact description thereof, referencebeing had to the accompanyingdrawings.

lVIy invention relates to an improved seam for uniting the edges of twopieces of leather, and will be understood as hereinafter set forth andClaimed.

` In the drawings,`Figure lis a view of the insidepieces of leatherwhich are united, the oovering-piece being removed a part of thedistance. Fig. 2 is a reverse view of Fig. 1. Fig. 3 is a section of theparts complete.

Similar letters of reference indicate corresponding parts in all thefigures.

A and B are the two pieces or parts Vof leather to be united. Alongtheedges joined they are beveled inl directions opposite to each other,and the beveled portions are overlapped. -I11 the middle of theoverlapping bevel edges I unite the pieces A B by a line of rivets, andon either side of the line of rivets c, I` join the thin edge of onebevel to the thick portion of the other by a line of stitches, e e. Onthe exterior of the seam I then place the coveringpiece f, which extendsout past the bevels on either side, and is united to the pieces A B atpoints Where they have the full thickness of the leather by lines ofstitches i i. Before the covering-piece f is set in' place the unitedbevel ness as the adjoining leather, and the covering-piece being setupon the exterior of the parts, the interior of the seam is left smooth,andthe whole forms a neat and secure fastening. 4o

A seam for uniting pieces of leather, consisting of the beveled edges ofthe said pieces laid directly upon each other and united by a centralrow of rivets and a line of stitches on each side of the line of rivets,the thickness of 55 a single pieceof leather being preserved in theseam, and a covering-piece, j', placed upon. and extending past thebeveled portions of the pieces on both sides, and united on both sidesto the pieces of leather, at a point Where they 6C have ltheir fullthickness, by `lines of stitches, substantially as set forth.` 4

In Witness whereof I have hereunto set` my hand and seal.

l QUAN KAI. [L s] Attest: f

WV. F. CLARK, l

JNO. II. MILLER.

edges forma uniting means of the same thick- 35 Y

